Improvement in street-reflectors tor windows



dilated tatrt @sind demini.

OTTO HEN-N1G,OF CHICAGO, ILLINOIS.

Laim Parent No. 92,966, daad Jtzyar, 1869.

IMPROVEMENT IN' STREET-REFLECTORS PQR WINDOWS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom this maylcoiwera:

Be it known thatv I, OTTO HENNIG, of Chicago, in the county of Cook, and State of Illinois, haveinvented a Device for Adjusting Looking-Glasses; and I do hereby dec-lare that the following is a full, clear,

and exact description of the construction. and opera` position, and in the use of au adjustable arrangement made to operate upon the rod, by means of whichthe glasses may be adjusted at any desired angle and height.

The object of my invention is to arrange the cornmon miirorsfiu such a way as to give a correct panoramic view of streets, scenery, inside' of buildings, and all places where an observer wishes to see what is transpiring, without being especially noticed.

I am well aware that mirrors have been frequently used for such a purpose before, but claim that'niy arrangement for swinging both glasses to the right or left, and the device for adjusting either glass to the angle required, and also to the height, is new and more convenient than any heretofore used for a similar purpose, and, as the stand can be set on the window-sill, outside of the sash, and have the rod adjusted so as to give a view of the street to a person inside of a room, it can be used with less exposure to a person than if a double adjustment were not used.

Another important feature of my invention consists in its adaptedness for book-keepers and others, in stores and similar places, in detecting burglar-s and others engaged in unlawful pursuits, whom it is desirable to watch.

In order to give a correct understanding of my inventien, I have marked corresponding parts with similar1etters,vand will new give aV detailed description.

AA represent a suitable stand, having a socket B rigidly attached, for the 'purpose of supporting the lower end of rod ,GP O, and permitting it to be swung around to any point desired.

I know that this kind of stand has been used for vvarious'purpcses, and therefore do not claim it as new,

but use it in conjunction with other parts in accom` plishing my purpose.

v The part C of the rod is bent at a right angle to.. Ypart P, and the part G is made to stand iu a vertical position, and support hinges'E F H I, attached tov mirror-frames o o, the fratrie o being hung by hinges F I, and frame o by hinges EH, the set-screws J K being used to hold the hinges in aiixed position when' glasses M N have been set at the desired angle'.

At drawing 1, the hinges are representadas adj usted on the vertical part Gr of rod, and near the horizontal part C, but in drawing 2, the hingesare shown'e1evated to the top of the rod.

This arrangement I'consider important, for if the glasses M N could not be raised as well as turned, the device would be inoperative for most purposes.

' In the manufacture of the invention, I prefer the use of metal. 'The stand A A, however, may be' made of wood, but all the parts should be nicely iitted, and

especiallyr the hinges, which must be made to slide v readily upon the vertical part G ofrod P G G.

Operation. No definite instructions can be given in regard to the method of using theinvention, nor is it necessary, for most persons will readily understand howto adjust the glasses M N so as toreiect the objects to be seen.

For street-views, the stand can be set on the window-sill,or any convenient place, and the glasses set at an angle which will give a view of the Astreet or object to be seen from the inside of the window.

Having thus fully described my device,

What I-claim, and desire to secureby Letters VIaty ent of the United States, is-` The arrangement and combination of hinges E F H I, rod l? C G, socket B, thumb-screws L J K, and frames o o',` when made and operated substantially as and for the purpose set forth.

Witnesses: OTTO HENNIG.

Gno. L. GHAPIN, A. HAYWARD. 

